Modeling Environmental Degradation and Economic Growth of Henan Province in Recent 25 Years

The environmental data (carbon emissions, industrial wastewater discharge, exhaust gases emissions and solid waste production.) and economic data (Per Capita GDP) from 1985 to 2010 was selected to fit environmental Kuznets curve (EKC). The results showed that all the EKC models were significantly fitted (p<0.01), the EKC shapes of Per Capita GDP (PCGDP) between carbon emissions, industrial exhaust gases emissions, and industrial solid waste production were inverted-U shape, respectively. The EKC shape of PCGDP and industrial wastewater was inverted-N shape. This study suggested that Henan Province is still at the stage of industrial development, and EKC turning points of carbon emissions, industrial exhaust gases, and industrial solid waste production have not been reached. Therefore, it is necessary to optimize and adjust energy-depended industry structure to improve environment quality and welcome EKC turning points coming as soon as possible.